Troubleshooting for idle choppers with current
Diagnostic codes 623, 624, 625
Diagnostic codes 623 – 625 identify if current is present in a chopper when the chopper is in an idle state.
Symptoms
Code Symptoms XPR models XPR action Code cancels with...
623 Chopper 1 is in an idle state, and the chopper cur-
rent is more than 10 A.
All models
624 Chopper 2 is in an idle state, and the chopper cur-
rent is more than 10 A.
XPR300,
XPR460
625 Chopper 3 is in an idle state, and the chopper cur-
rent is more than 10 A.
XPR460
None Remote on-off
Corrective action
1. Look for 24 VDC from the power sources (J2 pins 1 – 3).
2. If you find 24 VDC from the power sources, the chopper is bad.
3. Replace the chopper if necessary.
Troubleshooting for current sensor faults
Diagnostic code 631
Diagnostic code 631 can occur because of potential problems with the current sensor. Do a check of the
specified connections. In some conditions it can be necessary to replace the I/O PCB (PCB 5).
Symptoms
Code Symptoms XPR models XPR action Code cancels with...
631 The current in the work cable is more than 5 A while
the plasma cutting system is in the Wait for Start
state.
All models Shut down Remote on-off
Diagnostics and Troubleshooting
8
345811530Instruction ManualXPR460
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